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opengl-tutorial.org Website Information

Daily Unique Visits: 4,636

Daily Page Views: 18,544

Income Per Day: $52

Estimated Value: $28,080

opengl-tutorial.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.

No name server records were found.

and is probably hosted by GITHUB - GitHub, Inc., US. See the full list of other websites hosted by GITHUB - GitHub, Inc., US.

The highest website opengl-tutorial.org position in Alexa rank database was 12072 and the lowest rank position was 985737. Current position of opengl-tutorial.org in Alexa rank database is 270673.

Desktop speed score of opengl-tutorial.org (94/100) is better than the results of 92.73% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of opengl-tutorial.org (98/100) is better than the results of 55.61% of other sites and means that the page is mobile-friendly.

Mobile speed score of opengl-tutorial.org (83/100) is better than the results of 89.72% of other sites and shows that the landing page performance on mobile devices is excellent.

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opengl-tutorial.org Alexa Rank

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opengl-tutorial.org whois

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Domain Name: opengl-tutorial.org
Registry Domain ID: e0e9c37443b44b809a3ee4d61abc3b94-LROR
Registrar WHOIS Server: whois.squarespace.domains
Registrar URL: https://domains.squarespace.com
Updated Date: 2024-05-23T08:24:33Z
Creation Date: 2011-04-08T08:24:12Z
Registry Expiry Date: 2025-04-08T08:24:12Z
Registrar: Squarespace Domains II LLC
Registrar IANA ID: 895
Registrar Abuse Contact Email: abuse-complaints@squarespace.com
Registrar Abuse Contact Phone: +1.6466935324
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Name Server: ns-cloud-c4.googledomains.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-08T15:11:42Z

opengl-tutorial.org server information

Servers Location

opengl-tutorial.org desktop page speed rank

Last tested: 2018-12-13


Desktop Speed Good
94/100

opengl-tutorial.org Desktop Speed Test Quick Summary


priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

http://www.opengl-tutorial.org/css/main.css
http://www.opengl-tutorial.org/css/syntax.css

priority - 1Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

http://www.opengl-tutorial.org/css/main.css (10 minutes)
http://www.opengl-tutorial.org/css/syntax.css (10 minutes)
http://www.google-analytics.com/analytics.js (2 hours)

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 995B (17% reduction).

Minifying http://www.opengl-tutorial.org/ could save 995B (17% reduction) after compression.

opengl-tutorial.org Desktop Resource Breakdown

Total Resources7
Number of Hosts4
Static Resources3
JavaScript Resources1
CSS Resources2

opengl-tutorial.org mobile page speed rank

Last tested: 2018-12-13


Mobile Speed Medium
83/100

opengl-tutorial.org Mobile Speed Test Quick Summary


priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

http://www.opengl-tutorial.org/css/main.css
http://www.opengl-tutorial.org/css/syntax.css

priority - 2Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

http://www.opengl-tutorial.org/css/main.css (10 minutes)
http://www.opengl-tutorial.org/css/syntax.css (10 minutes)
http://www.google-analytics.com/analytics.js (2 hours)

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 995B (17% reduction).

Minifying http://www.opengl-tutorial.org/ could save 995B (17% reduction) after compression.

opengl-tutorial.org Mobile Resource Breakdown

Total Resources7
Number of Hosts4
Static Resources3
JavaScript Resources1
CSS Resources2

opengl-tutorial.org mobile page usability

Last tested: 2018-12-13


Mobile Usability Good
98/100

opengl-tutorial.org Mobile Usability Test Quick Summary


priority - 1Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="/miscellaneous/faq/">FAQ</a> and 3 others are close to other tap targets.

opengl-tutorial.org HTML validation

Errors

End tag “div” seen, but there were open elements.

Line: 2707 Column: 7 - 12
"...ul> </div> <..."

Unclosed element “nav”.

Line: 64 Column: 5 - 26
"... <nav class="site-nav"> ..."

Stray end tag “nav”.

Line: 2708 Column: 5 - 10
".../div> </nav> </d..."

Stray end tag “div”.

Line: 2709 Column: 3 - 8
"... </nav> </div> </hea..."

Duplicate ID “Layer_1”.

Line: 2736 Column: 89 - 300
"...on:none;"><svg enable-background="new 0 0 48 48" height="50px" width="50px" id="Layer_1" version="1.1" viewBox="0 0 48 48" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><circl..." Line: 2737 Column: 103 - 318
"...on:none;"><svg enable-background="new 0 0 128 128" height="50px" id="Layer_1" version="1.1" viewBox="0 0 128 128" width="50px" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g><ci..." Line: 2828 Column: 11 - 251
"... <svg class="gplus-icon-svg" enable-background="new 0 0 128 128" height="128px" id="Layer_1" version="1.1" viewBox="0 0 128 128" width="128px" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g><ci..."

Warnings

Unsupported SVG version specified. This validator only supports SVG 1.1. The recommended way to suppress this warning is to remove the “version” attribute altogether.

Line: 2735 Column: 100 - 311
"...on:none;"><svg enable-background="new 0 0 32 32" height="50px" id="Layer_1" version="1.0" viewBox="0 0 32 32" width="50px" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path ..."

The first occurrence of ID “Layer_1” was here.

Line: 2735 Column: 100 - 311
"...on:none;"><svg enable-background="new 0 0 32 32" height="50px" id="Layer_1" version="1.0" viewBox="0 0 32 32" width="50px" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path ..." Line: 2735 Column: 100 - 311
"...on:none;"><svg enable-background="new 0 0 32 32" height="50px" id="Layer_1" version="1.0" viewBox="0 0 32 32" width="50px" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path ..." Line: 2735 Column: 100 - 311
"...on:none;"><svg enable-background="new 0 0 32 32" height="50px" id="Layer_1" version="1.0" viewBox="0 0 32 32" width="50px" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path ..."

Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).

Line: 2741 Column: 3 - 6
"...home"> <h1>News</..."

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opengl-tutorial.org Ping

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opengl-tutorial.org TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.